You will be given a definition of a task first, then some input of the task.
Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.

Paragraph- Sent 1: You have seen your own reflection in a mirror.
Sent 2: The person looking back at you looks just like you.
Sent 3: Where does that reflected person appear to be standing?
Sent 4: Yes, they appear to be on the other side of the mirror.
Sent 5: That is really strange to think about, but very cool.
Sent 6: Have you ever waved at your reflection in a mirror?
Sent 7: The reflected image will wave back at you.
Sent 8: Here is something to try next time you stand in front of a mirror.
Sent 9: Wave to your reflection with your right hand.
Sent 10: What hand do you think the reflection will wave back with?
Sent 11: The same hand?
Sent 12: A different hand?
Sent 13: You will notice something interesting.
Sent 14: The reflection waves back with the hand on the same side as you, but it is their left hand.
Sent 15: The image in a reflection is reversed.
Sent 16: This is just like the image of the sign above.
Sent 17: Light rays strike flat shiny surfaces and are reflected.
Sent 18: The reflections are reversed. 
Question: What will you notice about your reflection when it waves back?.
Output:
That it waves back with the opposite hand.